CN215330203U - Anti-blocking water supply and drainage pipeline device - Google Patents
Anti-blocking water supply and drainage pipeline device Download PDFInfo
- Publication number
- CN215330203U CN215330203U CN202121576528.5U CN202121576528U CN215330203U CN 215330203 U CN215330203 U CN 215330203U CN 202121576528 U CN202121576528 U CN 202121576528U CN 215330203 U CN215330203 U CN 215330203U
- Authority
- CN
- China
- Prior art keywords
- adjusting
- drainage
- pipe
- filter
- splicing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 71
- 210000001503 joint Anatomy 0.000 claims abstract description 17
- 239000003657 drainage water Substances 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 abstract description 2
- 238000005406 washing Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 239000010865 sewage Substances 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Landscapes
- Sink And Installation For Waste Water (AREA)
Abstract
The utility model discloses an anti-blocking water supply and drainage pipeline device which comprises an adjusting box, a drainage water inlet pipe opening and a filter pipe butt joint frame, wherein the drainage water inlet pipe opening is formed in one side of the upper surface of the adjusting box, the filter pipe butt joint frame is installed at the port of a drainage water outlet pipe, and the anti-blocking water supply and drainage pipeline device further comprises a drainage water inlet pipe sealing device, a filter pipe butt joint device and a filter pipe device. Through the lift of the sealed lid of concave type, the control drainage advances opening and close of pipe, thereby opening and shutting of control drainage work, through splicing sleeve's flexible, the loading and the dismantlement of control filter tube, effectively made things convenient for the installation and the dismantlement of staff to the filter tube on the one hand, on the other hand makes things convenient for the washing of staff to the plug again, avoid the emergence of the pipeline jam condition, simultaneously through the extrusion of the sealed platform of concatenation to the filter tube, can make the filter tube can carry out effectual sealing, thereby avoid the device to take place to leak, influence drainage pipe's use.
Description
Technical Field
The utility model relates to the field of related equipment of water supply and drainage pipelines, in particular to an anti-blocking water supply and drainage pipeline device.
Background
The drainage pipeline refers to a system consisting of a pipeline for collecting and discharging sewage, wastewater and rainwater and accessory facilities thereof, and comprises a main pipe, branch pipes and pipelines leading to a treatment plant, wherein the length of the drainage pipeline is calculated according to the lengths of all drainage main pipes, the main pipe, the branch pipes, inspection wells, connecting well inlets and outlets and the like, and communication pipes, service pipes and open channels between a rainwater inlet and the drainage pipeline are not included.
The problem that the existing water supply and drainage pipeline for construction is easy to block exists, the blockage is not convenient to clean, some existing pipelines are cut by objects easy to block through a cutting device for installing the blockage in the drainage pipeline, and therefore the blockage is avoided.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems and designs an anti-blocking water supply and drainage pipeline device.
The technical scheme of the utility model is that the anti-blocking water supply and drainage pipeline device comprises an adjusting box, a drainage water inlet pipe opening and a filter pipe butt-joint frame, wherein the drainage water inlet pipe opening is arranged on one side of the upper surface of the adjusting box;
the drainage pipe inlet sealing device comprises a concave sealing cover arranged in the adjusting box, a first annular sealing gasket is arranged on the lower surface in the concave sealing cover, an adjusting screw rod is arranged below the concave sealing cover, the adjusting screw rod is connected with the concave sealing cover through an adjusting bearing, an internal thread adjusting cylinder is sleeved on the adjusting screw rod and extends out of the adjusting box, the internal thread adjusting cylinder is connected with the adjusting box through a large mechanical sealing bearing, and a large adjusting handle is arranged at the lower end of the outer side surface of the internal thread adjusting cylinder;
the detachable filter tube device comprises a splicing through hole formed in the center of the side surface of one side of the adjusting box, a splicing sleeve is arranged in the splicing through hole and is connected with the splicing through hole in a sliding manner, a splicing sealing table is installed at one end of the outer side surface of the splicing sleeve, an annular sealing gasket II is installed on the side surface of one side of the splicing sealing table, an external thread adjusting seat is installed at the other end of the outer side surface of the splicing sleeve, an annular sealing gasket III is installed on one side of the external thread adjusting seat and is in movable contact with the inner side surface of the adjusting box, a sleeve bearing is arranged on one side of the center inside of the adjusting box, an internal thread sleeve is installed in the sleeve bearing and is sleeved on the splicing sleeve, the internal thread sleeve is in threaded connection with the external thread adjusting seat, and a large bevel gear is installed on the outer side surface of the internal thread sleeve, a small bevel gear is arranged below the inner part of the adjusting box and is meshed with the large bevel gear, an adjusting rotating shaft is arranged on the lower surface of the small bevel gear, the adjusting rotating shaft is connected with the adjusting box through a small mechanical seal bearing, and a small adjusting handle is arranged at the lower end of the adjusting rotating shaft;
the filter tube device comprises a filter tube, an annular sealing table is installed at one end of the outer side surface of the filter tube, the annular sealing table is in movable contact with the butt joint frame of the filter tube, and a silt filter screen is movably installed inside the filter tube.
Preferably, one end of the splicing sleeve is inserted into the filter pipe, and the splicing sealing table and the filter pipe are sealed through a second annular sealing gasket.
Preferably, the annular sealing table and the filter pipe butt-joint frame are sealed through an annular sealing gasket IV.
Preferably, the water inlet and drain pipe is fixedly connected with an external water inlet and drain pipe.
The anti-blocking water supply and drainage pipeline device manufactured by the technical scheme of the utility model has the following beneficial effects:
this device passes through the lift of the sealed lid of concave type, the control drainage advances opening and close of pipe, thereby control opening and shutting of drainage work, through splicing sleeve's flexible, the loading and the dismantlement of control filter tube, the installation and the dismantlement of staff to the filter tube have effectively been made things convenient for on the one hand, on the other hand makes things convenient for the washing of staff to the plug again, avoid the emergence of the pipeline jam condition, simultaneously through the extrusion of the sealed platform of concatenation to the filter tube, can make the filter tube can carry out effectual sealing, thereby avoid the device to take place to leak, influence drainage pipe's use.
Drawings
FIG. 1 is a schematic view of the anti-clogging water supply and drainage pipeline apparatus of the present invention;
FIG. 2 is a schematic view of the conditioning tank of the present invention;
FIG. 3 is a side view of the splice sleeve of the present invention;
in the figure, 1, a regulating box; 2. a drainage inlet pipe orifice; 3. the filter pipe butt joint frame; 4. a concave sealing cover; 5. a first annular sealing gasket; 6. adjusting the screw rod; 7. adjusting the bearing; 8. an internal thread adjusting cylinder; 9. a large mechanical seal bearing; 10. a large adjustment handle; 11. splicing through holes; 12. splicing the sleeve; 13. splicing the sealing tables; 14. a second annular sealing gasket; 15. an external thread adjusting seat; 16. a third annular sealing gasket; 17. a sleeve bearing; 18. an internally threaded sleeve; 19. a large bevel gear; 20. a bevel pinion gear; 21. adjusting the rotating shaft; 22. a small mechanical seal bearing; 23. a small adjustment handle; 24. a filter tube; 25. an annular seal land; 26. a silt filter screen; 27. and a fourth annular sealing gasket.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: a kind of anti-block water supply and drainage pipeline apparatus, including regulating box 1, water drainage enter mouth of pipe 2 and filter tube butt joint frame 3, the water drainage enters the mouth of pipe 2 and opens on one side of upper surface of regulating box 1, the filter tube butt joint frame 3 is installed in the port department of the water drainage exit tube, also include water drainage enter sealing device, filter tube butt joint device and filter tube apparatus; the drainage inlet pipe sealing device comprises a concave sealing cover 4 arranged inside an adjusting box 1, an annular sealing gasket I5 is mounted on the lower surface inside the concave sealing cover 4, an adjusting screw 6 is arranged below the concave sealing cover 4, the adjusting screw 6 is connected with the concave sealing cover 4 through an adjusting bearing 7, an internal thread adjusting cylinder 8 is sleeved on the adjusting screw 6, the internal thread adjusting cylinder 8 extends out of the adjusting box 1, the internal thread adjusting cylinder 8 is connected with the adjusting box 1 through a large mechanical sealing bearing 9, and a large adjusting handle 10 is mounted at the lower end of the outer side surface of the internal thread adjusting cylinder 8; the detachable filter tube device comprises a splicing through hole 11 formed in the center of the side surface of one side of an adjusting box 1, a splicing sleeve 12 is arranged in the splicing through hole 11, the splicing sleeve 12 is in sliding connection with the splicing through hole 11, a splicing sealing table 13 is arranged at one end of the outer side surface of the splicing sleeve 12, a second annular sealing gasket 14 is arranged on the side surface of one side of the splicing sealing table 13, an external thread adjusting seat 15 is arranged at the other end of the outer side surface of the splicing sleeve 12, a third annular sealing gasket 16 is arranged on one side of the external thread adjusting seat 15, the third annular sealing gasket 16 is in movable contact with the inner side surface of the adjusting box 1, a sleeve bearing 17 is arranged at one side of the center of the inside of the adjusting box 1, an internal thread sleeve 18 is arranged in the sleeve bearing 17, the internal thread sleeve 18 is sleeved on the splicing sleeve 12, the internal thread sleeve 18 is in threaded connection with the external thread adjusting seat 15, and a large bevel gear 19 is arranged on the outer side surface of the internal thread sleeve 18, a small bevel gear 20 is arranged below the inner part of the adjusting box 1, the small bevel gear 20 is meshed with a large bevel gear 19, an adjusting rotating shaft 21 is arranged on the lower surface of the small bevel gear 20, the adjusting rotating shaft 21 is connected with the adjusting box 1 through a small mechanical seal bearing 22, and a small adjusting handle 23 is arranged at the lower end of the adjusting rotating shaft 21; the filter tube device comprises a filter tube 24, an annular sealing platform 25 is arranged at one end of the outer side surface of the filter tube 24, the annular sealing platform 25 is in movable contact with the filter tube butt-joint frame 3, and a silt filter screen 26 is movably arranged inside the filter tube 24.
Example (b):
when the device needs to be used, firstly, a worker sleeves the adjusting box 1 on the drainage inlet pipe, the drainage inlet pipe is inserted into the drainage inlet pipe opening 2 on the adjusting box 1, and then the worker welds the drainage inlet pipe on the adjusting box 1, so that the drainage inlet pipe is sealed with the adjusting box 1;
at the moment, the worker sleeves the filter pipe butt joint frame 3 on the port of the drainage outlet pipe, and welds the filter pipe butt joint frame 3 with the drainage outlet pipe to seal the filter pipe butt joint frame 3 with the drainage outlet pipe;
at this time, the worker can manually rotate the small adjusting handle 23, the small bevel gear 20 starts to rotate along with the rotation of the adjusting rotating shaft 21 driven by the small adjusting handle 23, the large bevel gear 19 starts to rotate through the meshing of the small bevel gear 20 and the large bevel gear 19, so that the internal thread sleeve 18 is driven to rotate, and the splicing sleeve 12 cannot rotate when the internal thread sleeve 18 starts to rotate due to the limit connection between the splicing sleeve 12 and the splicing through hole 11, and the external thread adjusting seat 15 transversely moves along with the rotation of the internal thread sleeve 18 in the rotating process of the internal thread sleeve 18 through the threaded connection between the internal thread sleeve 18 and the external thread adjusting seat 15, so that the splicing sleeve 12 is driven to transversely move, and the splicing sleeve 12 extends out of the adjusting box 1;
after the splicing sleeve 12 extends out for a certain distance, at the moment, a worker manually installs the silt filter screen 26 into the filter pipe 24, then the filter pipe 24 is lifted, one end of the filter pipe 24 with the annular sealing table 25 is placed into the filter pipe butt-joint frame 3, the other end of the filter pipe 24 is placed at the splicing sleeve 12, at the moment, the worker continuously rotates the small adjusting handle 23 to enable the splicing sleeve 12 to continuously extend out, the splicing sleeve 12 is inserted into the filter pipe 24 along with the continuous extension of the splicing sleeve 12, meanwhile, the annular sealing gasket II 14 on the splicing sealing table 13 is in contact with the filter pipe 24, the splicing sealing table 13 extrudes the filter pipe 24 to enable the splicing sealing table 13 and the filter pipe 24 to be sealed through the annular sealing gasket II 14, and the annular rice flour table 25 and the filter pipe butt-joint frame 3 are sealed through the annular sealing gasket 27;
at the moment, the device can be used for drainage work, when the device is used for a certain time, the silt filter screen 26 filters the sewage in the drainage pipe, so that silt and garbage in the sewage are remained in the silt filter screen 26, and at the moment, a worker is required to disassemble the filter pipe 24 and replace the silt filter screen 26 with a new one, so that the blockage of the drainage pipe is avoided;
when the sediment filter screen 26 in the filter pipe 24 needs to be replaced, at the moment, a worker manually rotates the large adjusting handle 10, the internal thread adjusting cylinder 8 is driven to rotate along with the rotation of the large adjusting handle 10 and is connected with the adjusting screw 6 through the thread of the internal thread adjusting cylinder 8, so that the adjusting screw 6 is driven to start to ascend in the rotating process of the internal thread adjusting cylinder 8, the adjusting screw 6 drives the concave sealing cover 4 to ascend along with the ascending of the adjusting screw 6, the concave sealing cover 4 is in contact with the port of the drainage inlet pipe and is sleeved on the port of the drainage inlet pipe, the concave sealing cover 4 is enabled to extrude the port of the drainage inlet pipe along with the continuous rotation of the large adjusting handle 10, and the drainage inlet pipe is sealed through the annular sealing gasket I5;
after the drainage inlet pipe is sealed, waiting for a certain time to completely discharge residual sewage in the adjusting box 1 and the filtering pipe 24, and after waiting for a certain time, reversely rotating the small adjusting handle 23 by a worker, driving the adjusting rotating shaft 21 to rotate along with the small adjusting handle 23, meshing the small bevel gear 20 with the large bevel gear 19 to reversely rotate the internal thread sleeve 18, and matching the internal thread sleeve 18 with the thread of the external thread adjusting seat 15 to enable the external thread adjusting seat 15 to drive the splicing sleeve 12 to start to shrink towards the inside of the adjusting box 1, so that the filtering pipe 24 is loosened;
with the continuous rotation of the small adjusting handle 23, the worker manually holds the filter pipe 24 to separate the filter pipe 24 from the splicing sleeve 12 and the filter pipe butt-joint frame 3, then the worker can take the filter pipe 24 down, take out the silt filter screen 26 inside the filter pipe 24, clean the residual garbage and silt in the filter pipe 24 at the same time, and then install the new silt filter screen 26 into the filter pipe 24;
at this moment, the worker observes whether the inside of the adjusting box 1 contains garbage or not through the splicing sleeve 12, takes out the garbage inside the adjusting box 1, and then installs the filter pipe 24 with the replaced silt filter screen 26 into the splicing sleeve 12 and the filter pipe butt joint frame 3 again according to the installation operation of the filter pipe 24.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The anti-blocking water supply and drainage pipeline device comprises an adjusting box (1), a drainage water inlet pipe orifice (2) and a filter pipe butt joint frame (3), wherein the drainage water inlet pipe orifice (2) is arranged on one side of the upper surface of the adjusting box (1), and the filter pipe butt joint frame (3) is arranged at the port of a drainage water outlet pipe;
the drainage pipe inlet sealing device comprises a concave sealing cover (4) arranged inside an adjusting box (1), a first annular sealing gasket (5) is arranged on the lower surface inside the concave sealing cover (4), an adjusting screw (6) is arranged below the concave sealing cover (4), the adjusting screw (6) is connected with the concave sealing cover (4) through an adjusting bearing (7), an internal thread adjusting cylinder (8) is sleeved on the adjusting screw (6), the internal thread adjusting cylinder (8) extends out of the adjusting box (1), the internal thread adjusting cylinder (8) is connected with the adjusting box (1) through a large mechanical sealing bearing (9), and a large adjusting handle (10) is arranged at the lower end of the outer side surface of the internal thread adjusting cylinder (8);
the filter tube butt joint device comprises a splicing through hole (11) arranged at the center of the side surface of one side of an adjusting box (1), a splicing sleeve (12) is arranged in the splicing through hole (11), the splicing sleeve (12) is connected with the splicing through hole (11) in a sliding manner, a splicing sealing table (13) is arranged at one end of the outer side surface of the splicing sleeve (12), an annular sealing gasket II (14) is arranged on the side surface of one side of the splicing sealing table (13), an external thread adjusting seat (15) is arranged at the other end of the outer side surface of the splicing sleeve (12), an annular sealing gasket III (16) is arranged at one side of the external thread adjusting seat (15), the annular sealing gasket III (16) is in movable contact with the inner side surface of the adjusting box (1), a sleeve bearing (17) is arranged at one side of the center of the inner part of the adjusting box (1), and an internal thread sleeve (18) is arranged in the sleeve bearing (17), the inner thread sleeve (18) is sleeved on the splicing sleeve (12), the inner thread sleeve (18) is in threaded connection with the outer thread adjusting seat (15), a large bevel gear (19) is installed on the outer side surface of the inner thread sleeve (18), a small bevel gear (20) is arranged below the inside of the adjusting box (1), the small bevel gear (20) is meshed with the large bevel gear (19), an adjusting rotating shaft (21) is installed on the lower surface of the small bevel gear (20), the adjusting rotating shaft (21) is connected with the adjusting box (1) through a small mechanical sealing bearing (22), and a small adjusting handle (23) is installed at the lower end of the adjusting rotating shaft (21);
the filter tube device includes filter tube (24), annular sealing platform (25) are installed to filter tube (24) outside surface one end, annular sealing platform (25) and filter tube butt joint frame (3) movable contact, the inside movable mounting of filter tube (24) has silt filter screen (26).
2. The anti-clogging water supply and drainage pipeline device according to claim 1, wherein one end of the splicing sleeve (12) is inserted into the filter pipe (24), and the splicing sealing table (13) and the filter pipe (24) are sealed through a second annular sealing gasket (14).
3. The anti-clogging water supply and drainage pipeline device according to claim 1, wherein the annular sealing platform (25) and the filter pipe butt joint frame (3) are sealed by an annular sealing gasket four (27).
4. An anti-clogging water supply and drainage pipe device according to claim 1, wherein said drain inlet pipe mouth (2) is fixedly connected to an external drain inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121576528.5U CN215330203U (en) | 2021-07-12 | 2021-07-12 | Anti-blocking water supply and drainage pipeline device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121576528.5U CN215330203U (en) | 2021-07-12 | 2021-07-12 | Anti-blocking water supply and drainage pipeline device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215330203U true CN215330203U (en) | 2021-12-28 |
Family
ID=79566575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121576528.5U Expired - Fee Related CN215330203U (en) | 2021-07-12 | 2021-07-12 | Anti-blocking water supply and drainage pipeline device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215330203U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114623310A (en) * | 2022-02-28 | 2022-06-14 | 中国水利水电第九工程局有限公司 | Integral ultraviolet curing repair process for sewage pipeline |
-
2021
- 2021-07-12 CN CN202121576528.5U patent/CN215330203U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114623310A (en) * | 2022-02-28 | 2022-06-14 | 中国水利水电第九工程局有限公司 | Integral ultraviolet curing repair process for sewage pipeline |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215330203U (en) | Anti-blocking water supply and drainage pipeline device | |
| CN108786228A (en) | A kind of anticlogging y-type filter | |
| WO2023159381A1 (en) | Industrial wastewater treatment apparatus | |
| CN203833720U (en) | Grease separator used for restaurants and integrating residue removal, oil discharge and lifting automatically | |
| CN204996217U (en) | Automatic arrange sediment filter pressing device | |
| CN213492272U (en) | Water supply and drainage pipeline structure with powerful filtering structure | |
| CN116966656A (en) | Automatic detection and cleaning device for pipeline water delivery and distribution | |
| CN207056093U (en) | A kind of clear chimney filter road of automatic discharge | |
| CN112145729B (en) | Automatic cutoff type pipeline control valve for sewage discharge | |
| CN211499110U (en) | Sponge city sump pit's device of decontaminating | |
| CN211706066U (en) | Wastewater treatment filtration system | |
| CN211774231U (en) | Novel prevent building plumbing of jam device | |
| CN209967809U (en) | Kitchen fermentation pipeline anti-blocking device | |
| CN221131109U (en) | Mud discharging device for sewage treatment | |
| CN112314093A (en) | Irrigation maintenance device for soil treatment and restoration and maintenance method thereof | |
| CN219080536U (en) | Discharge cleaning device convenient to sewer line | |
| CN110860120A (en) | Waste water solid-liquid separation system for environmental protection | |
| CN111576605A (en) | Sewage treatment integration pump station | |
| CN220802219U (en) | Industrial water supply network drain | |
| CN217391804U (en) | Self-cleaning submersible sewage pump backwashing filter device | |
| CN219023396U (en) | Waste water pipeline for waste water treatment device | |
| CN216616132U (en) | Prevent drainage pipe for municipal works of jam | |
| CN210915726U (en) | District sewage treatment device | |
| CN220847988U (en) | Sewage pipeline anti-blocking device | |
| CN220814199U (en) | Municipal drainage sewage pipes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211228 |